Power factor corrected switching power supply

Details Power factor corrected switching power supply Power factor corrected switching power supply

1994-06-28

1997-07-08

Wong, Peter S.

Electric power conversion systems

Current conversion

Including d.c.-a.c.-d.c. converter

363133, H02M 3335

Patent

active

056468326

ABSTRACT:
In an AC to DC power converter (off line switcher) and a method of converting AC power to DC power in high voltage systems the flyback converter's low side semiconductor switch has a lower breakdown voltage than its high side semiconductor switch. The lower breakdown voltage is achievable by means of a shunt regulator that controls a clamp voltage across the low side switch. The efficiency of the converter's post regulator is improved by processing only a fraction of the system's total power output.

REFERENCES:
patent: 4685039 (1987-08-01), Inou et al.
patent: 4754385 (1988-06-01), McDade et al.
patent: 5225767 (1993-07-01), Gulczynski

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